petermann



0. PETERMANN.

TYPE WRITING MACHINE.

APPLlcATloN F1LEn1uLY1.6.1914.

o. PETERMANN.

TYPE WRITING MACHINE. APPLICATION FILED lULY 16.19I4.

l l 949420. Patent-ed Aug. l5, 1916.

' gif@ 4 2 SHEETS-SHEET 2.

arma ni l1,

OTTO PETERMANN, OF GROTON, YORK, ASSIGNO-R TO CORONA TYPEWRTER COMPANY, INC., CORPORATION OF NEW YORK.

TYPE-WRITING MACHNE.

Specification of Letters Patent.

Patented Aug. 15,1916.

Application fried July 16, 1914. Serial No. 851,334. i

.To all "whom it may ca licorne Be it known that l; O'r'ro PETERMANNS@ citizen of the United States, and a. resident of Groton, county of Tompkins, andState of New York, have invented certain new and useful Improvemeritsv in Type-lVritmg Machines, ofwhich the following is a full, clezer, and 4enact description.

.This invention relates more particularly Mt al a deadkey action for typewriting machines forprinting accents or for underscoring purposes.

In visible typewriting machines where oneor more dead or accent keys are employed, it is necessary that the construction be such that the ribbon vibrator will be lmoved to cover and uncover the printing v tion to the keys or the type-bars and wherein a special form of escapement mechanism and ribbon vibrating mechanism is ordinarily employed and wherein both escapement mechanism and ribbon vibrating mechanism are operated through the 'same 4element forming a connection with the universal. bar, ycertain problemsexist beca-use of the fact that the ribbon should always loe-moved tothe same height and the same element that operates the ribbon vibrator should be moved in such a way that it will not trip the escapement. It is desirable too that'theconstructionbe such that it will permit a bichrome ribbon to be employed and the ribbon ,eir- 'actly positioned with respect to the'printing point to remove -allliability to ibleeding. Another feature to be considered is means whereby accent or underscoring type, owing to their small-character, may be controlled in such a. way that they 4will not bev forced'through the paper inprinting and thereby injure the surface of the platen.

One of the principal objects of the invention is to overcome the objections referred to and to meet the requirements specied, and to provide simple means whereby any one of a Series of keys may be converted into ai dead, silent4 or accent key, and the said key made to operate a ribbon' 'vibrator to more upper part o.

the ribbon to and from the printing point a` distance corresponding to that obtained by the ordinary key and at the same time prevent the' tripping of vthe escapement so that the carriage will not be moved by its letter-spacing;r mechanism.

Another object of the invention ist-o provide a simple and eh'icient attachment-which may be arranged to form' a stop orrbumper bar effect for each key-operated lever, and to provide simple means whereby-all of the keys may have substantially the same extent Y of movement.

Other objects of the invention are to provide simple and eflicient means whereby very little change is required in typewriting mashines of the visible, portable-type to adapt any one of the keys to be made a dead or silent key; and to provide simple and efii- Icient means whereby a single rocking frame may be operated by allof the key-leversl and with some of the keylevers given a greaterv movement than by others to adapt both the escapement 'and ribbon lvibrating mechanisms to be operated by certain of the keys and only the ribbon mechanism to be op;

erated by one or more other` keys.

A further object of the invention is to provide simple and efiicientmeans i'orming a dead key action which is particularly adapted for typewriting machines in which the carriage and the keys are broughtl into close, relation with respect to each other in' order that the machine may be made more compact when not in use-than when in its normal working condition.

With these and other objects in view, the

invention will be hereinafter more particu-v feo larly described with reference to the accompanying drawings, which form a. part of this application, and. will then be pointed out inthe claimsat the end of the description.

In the drawings, Figure 1 is a longitu'di l nal secti9n`, partlyin elevation, of one form of machine e bodying my invention. Fig.' 2 iS a fragug 106: I itary'frontv elev'atiomcf the the machine Fig. 3 is an inf,-

verted plan of apart Qthe rbbonvibrating mechanism detached from the machine. Fig'. 4r' is a detail plan yview of. the ribbon 'vibrating mechanism removed from thefmaer chine 'showing a (special formi-foi actuatin means. 1l Eig. 5 is a view similar to Fig;

ing-been moved to :force theritbon over the' l 4 except that the vibrato1, is.shown as hav llt@ printing point. Fig. 6 is an enlarged fraginentiry transverse section, partly in elevajt-ion, of the ribbon vibrating mechanism.

Fig. 7 is a. detail plan view of the ribbon vibrator actuating means removed from the machine.` Fig. 8 is a fragmentary front elevation, 'partly in section, of the vibrating mechanism. Fig. 9 is an elevation of thedead key attachment showing a part of the key-lever comb or guide lplate to'which said attachment is applied. Fig. 10 is a detail `perspective view of the dead key attachment or device .for engagement by any one ofthe key-levers to which it is applied; and Fig.

-11 is affvertical section taken on the line XI-XIl'of'Fig. 9. l.

lVhile'the'invention is shown as applied to a typewriting machine such as disclosed in the reissue vpatent to Frank S. Rose-,No 13,934, dated' June 22, 1915, wherein the cai'- riage is mounted upon a foldable support in order that the carriage maybe moved for- ,ward so as to substantially overhang the keys and in which the mechanism of the Rose-type of machine has been modified and such modifications and improvements eini and side plates 12. lExtending transversely bodied in different applications filed by me, it willV be' understood that the 'invention or certain parts thereof. may be applied to type- Writing machines of Various kinds. y n The .frame l10 may be'of 'any suitable Construction and may'compris'e -a back plate 1-1 between. the Aside "plates 12 are rods '13 on each of which issuspended a plurality of key-levers-'leso as Ito provide a series of banks of such key-levers inq the usual way,

' y one 'or more of said levers, 'as 14a, being an accent or -dead `key-operated lever. Each v key-lever may-'be lheld in its normal position by'a spring 15, one end of' which is fastened to the key-leverand the otherend to a transversely extending bar 16.- `-At the inner end of each key-levei-.is an upwardly `projecting part 17 which is lconnected by a link 18 or otherwise 'to one of the 'type-bars 18a soth'at on depression of any one of the keylevers the inner end of the key-lever may be forced upward so as to move the type on. the 'type-bar 'upward and rearward for f printing purposes. Each ordinary key-lever may have a tongueor finger 19 which when io'rced upward is vadapted to engage the lowerA edge of a universal bar 20, and each dead key-lever may have its tongue or finger abentdownwardly, asiat 19a, in order to engage the universal bar 2() later than the ment to said bar. This universal bar 2() *provided with integral arms 21, the upper ends of which are pivoted, at 22, to the arms .c of bell-crank levers 24.- T here are two bell-crank levers 24, one at each side of the inachine,'"and said bell-crank levers are piv- Oted, :it/25, to. a part held to the machine tongues 19 andy thereby impart less mo'vev frame and may have an end 26 which is adapted to engage vertical 'slots 2T in the rocker arms 28. The arms 2S aie connected together at their upper ends by an integral bar 29 so'as to form an inverted substantially U-shaped frame, the lower ends of .which are pivoted to a transversely extending rod 30. This i'od 30 ispivoted to one or more arins 31 forming a part of a sintable platen shift mechanism, and said i'od 30 is connected to slides, not shown, which are held to arms or bars forming a part of a foldable support 31. These arms or bars of the foldable supportare pivoted together, at and at their inner ends two of said fba rs are 'rigidly connected together by a lcaipriage bed 33. Onthe bed 33 is a carriage 31 liaving a platen 34 and a rack 35 which is adapted to be engaged by the dogs 36 and 37, the said dogs being mounted on acarrier 38. Suitable tension mechanism, asa spring drum 3S, is provided 'whereby the carriage maj,v be forced along its bed when the escapenieiit is tripped by the rocking of the frame 2S, the latter causing the engagement of a tappet 39 forming a part of the transversely extending bar 29 with the dog carrier 38. The carriage with the parts lmounted .on the carriage bed and the foldable part of the support are adapted to be moved forward over the keys. The parts as thus described, except as to the differently positioned tongues 19 and 19, are not claimed herein and such parts may be of the usual or ot any preferred construction.

In order to give one or more of the keys or key-operated levers a bumper effect and prevent all liability of .moving the .rocking frame 28 far enough to tripv the escapemeiit, I provide one or more devices 10 which are attached to the machine in such a way as to form a positive stop for the key-lever with which it cooperates. Each key-lever at its inner end is'provided with a part l1 which normally moves in-a slot 42 of a comb-or guide plate 43, there being a slot for each key-lever. AThe comb plate 13, Figs. 1, 9,' 1() and 11, extends transversely of the machine and is supported at its opposite ends on `projects inward wit-hin one of the slots 42 so as to shorten the length thereof and Serve as a positive stop for the key-lever whose end 41 is adapted to be engaged by the stop 47. This stop is of such length that it will have a bumper effect and limit the extent of movement of the rocking frame 28 and thebkeylever with which it cooperates without liability of the escapement being tripped.4 The keylever is arrested at such a- 'point that the typebar will continue its movement toward the platen with suliicient force to make the impression for printingjpurposes, but without cutting or injuring the paper or the platen, thereby permitting accent type and the like to be employed. The movement of the dead key-lever is such that it will not trip the es capement, thus the printiinof may be made to take effect either above or below the character previously printed by an ordinary key which does not coperate with a deviceor attachment 40. The device l() is intended to be detachable from the comb plate so that it may be applied to coperate with any one of the key-operated levers, and thc stop 47 thereof may be adjusted by filing oit the lower en'd or by bending the same. The body of said device has a yielding or spring hooked portion 48 which is adapted to fit over the upper edge of the comb plate l?) and at the lower edge of said body of the ldevice l0 are hooks or lips 49 which are adapted to be passed about the lower edge of the comb plate 43 as shown best in Figs. 1, 9 and 11.

The ribbon may be mow" 9^ and from the printing point b'v any suitable mechanism.' As shown, the vibrating mechanism is substantially the same as *be cmstruction of the mechanismshown in mv Patent No. 1,121,044, dated December 15, 1911, except as to one part. The exception referred to is in .the lever 50 and tl* form or character of the slot 51 in said lever, the lever, except as to the slot, being' substantially the same as in my Patent No. 1,121,043 dated December 15, 1914. This lever 50 has a body portion 52 which is pivoted. at 53. to nu actuator or aietuating member 54, and said lever has a bent over or overhanging portion 55 in which the angular slot 51 is formed: The lever 50 is adjustableto various inclinations on its pivot 53 so as to present the slot 51 at different angles with respect to a. roll 56 mounted on the lower end 57 of a ribbon vibrator 58. This vibrator 58 is pivoted, Yat 59, to a bracket 60 which: is rigidly held to the carriage bed. The vibrator has an arm 61 extending substantially parallel to the platen 34a and has its end 62 adapted to hold the ribbon and move the' same to and from the printing point, the said vibrator being in one or more parts as preferred. l Thelower end of the vibrator is. provided with a second roll 63 which is adapted to enter a slot 64 formed in an arm 65 of the bracket 60 and which slot is elongated and extends lengthwise of the platen. The actuator 54' is substantially L- shaped and is pivoted, at 66, to the bracket 6() and is normally forced in one direction by a spring 67,one end of which is held to a part of the bracket 60 and the other end to a projection 68 on-tlie actuator or actuating member 5l. The actuator 54 is provided with a slot 69 which is adaptedgto. receive the bendable end 70 of an adjustable plate or bracket. 71 which is mounted on the transverse bar 29 of the rocking frame 28 so that when the bar 28 is operated by the keys as already explained, it will move the actuator 54: inward against the tension of the spring 67, while on the release of the key the spring 67 will return the actuator to its former and normal position. This actuator 5-1 is provided with an upwardly extending and integralv portion 72. This part 72.is corrugated to provide several depressed 'parts and the said actuator -l is slotted, at 73, through which passes the outer end of the lever 50. The lever 50 has a finger part Tl and has its body provided with an opening .7 5 through which may be seena letter or character placed upon the actuator 51. There are three of vsuch characters AS, B and R indicating three'positions in which the lever 50`is adapted to be held. Then in the position shown in the drawings. the vibrator is adapted to move the black field of the .ribbon to and from the printing point. lf the lever 50 is moved so that the .character R is seen through the opening 75, the red or other colored lieldl of the ribbon will be moved to and from the printing point, and if the lever 50 is ymoved so that the letter S appears under the opening 51, then the constructionvis such that the actuator 5l may be operated without giving more than a slight movement to the ribbon,

thus adapting the machine for making stenfmuch action, either cam or otherwise, on the roll 56 and therefore the ribbon-vibratorA ment, it is brought back and held below the printing point in substantially the vmanner shown and` disclosed in my patents herein referred to.

In the lever 50 and the character of the slot 51 of said lever is the principal and subL stantially the only diii'erence between the present construction. of ribbon vibrating mechanism and that disclosed in the said patents. The reason for the form of Slot is that the actuating part of the lever 50 is in the part 76 of the slot 51 while the roll 56 may move in the angular ,or inactive part 77 of said slot without giving any further movement to the vibrator. That is, when an ordinary key is depressed, the tongue 19 thereof will, engage the universal bar much sooner than the downwardly bent end 19a of tuated thereby will move a greater distance under the action ot the ordinary key than under the action of the dead key. The anwhile it may have a slight upward movevvents-further'action of said key on the unigula'r or inactive part 77 of the slot of the lever 50 is so arranged'that when an ordi nary key is depressed, the roll 56 of the rib- 'bon vibrator will enter said angular'part 77 'oi the slot Without moving the vibrator, but

will continue to move the rocking trame so as` to trip the escapement, while the entire .acti'on of. the dead key, owing tov its. tongue 19a. engaging the universal bar later, will gtve'a less movement-to the universal vbar and rocking fra-me as Well as the ribbon actuator 54 so that-said actua-tor would only of the level' 50` as shown in dotted lines in isso `formed that it orcesthexribbon' to its highestI position when the ordinary key is opi-rated lsome time before the type reaches the platen,'but when a dead or'silent key is.

operated, the Vvr-ibbon is made` to cover the .printing point just before thetype reaches the platen,4 The vstop 47, lby forming. a

.Writer maybe conver bum erv effect. for 'the dead or silent'key, preversa-l bar and thus the rocking frame is prevented from moving far enough to trip the escapement. y .Fromthe foregoing, it Will be evident that Isimple and eicient means is provided fwhereby any of the regular keys of .a typeted into a dead or l'Silent key; that simple means is provided 'Wherebythe ribbon vibrator may be operatectto cover "and uncover 'the printing point without tripping the escapement;v

that, simple means is provided whereby the ribbon both When the regular keys are operated and when the dead keys are operated is'moved to the sameheight; that a simple andeiiicicnt attachmentis provided for giv- 'bump'ereil'ect to any one of the keyer' j'ith which it'cotiperates; and that yention is simple in construction' and eI applied to typewriting machines Having tlius described my invention, I

claim as new andl desire'to-secure by' Letters Patent:-

1. In a typewriting machine, the combination of acarriage, escapement mechanism oiftletter-spacing the carriage, universal bar from the first-mentionedpkepoperated lever lfinechanism adapted to trip the escapement,

type, key-operated levers for moving tl1e- '-t-ype vand adapted to trip the escapement through the universal bar mechanism, an accent key-operated lever` forV impart-ing a less 'movement to the universal bar mecha-` nism and at a ditterent'part et its movement with-ont. tripping theescape-ment, and a stop adapted` for positiveengagement by a part of theiticcent `key-operated lever to prevent- .bon vibrating mechanism and trip the escapement,-type, key-operated levers for ,mov- `mg the type and the umversal bar mecha- '--Ur'dinarily constructed with very little' :-jclIa-Ilg. y

lfurther movement thereof and at a point just prior to the printing by the type but in sucI a way as to permit the type by its momentum to make an impression.

2. In a typewriting machine, the combination of a carriage, escapement mechanism for letter-spacing the carriage, ribbon vibrating mechanism, universal bar mechanism carrying a part of the ribbon vibrating mechanism' and adapted to operate said ribnism iand adapted to trip the escapement through said universal bar mechanisui, an accent key-operated lever for imparting a less movementto the universal bar mechanism to operate the ribbon vibrating mecha nism without tripping the escapement, and a stop adapted for positive engagement by a part of the accent key-operated lever to prevent further movement thereof and at a point just prior to the printing by the type but in such a way as to permit the type by. its momentum to make an impression.

A3. In a typewriting machine, the combination of a carriage, escapement mechanism for letter-spacing the carriage, universal bar mechanism adapted to trip the escapement, type, key-operated levers for moving 9 the type and adapted to trip the escapcment through the universal bar mechanism, an accent key-operated lever for imparting a less movement to the universal bar mechanism and at a differentpart of its movement from the first-mentioned key-operated levers, and a stop adapted forpositive engagement by a part of the accent key-operated lever to prevent further movement thereof and i a point just prior to the printing by the type but in such a way as topermit the type byits momentum to make an impression.

4. In a typewriting machiner` the combination of a carriage, key-operated levers, type operated by said levers, escapement 4mechanism for the carriage, auniversal bar operatively connected to said escapement mechanism and normally separated from the key-operated levers, and stopping means for arresting a part only of said key-operated levers at such a1 point that suilicient movement to actuate the escapement mechanism. will not be given said bar.

5. In a typewriting machine, the combination of a carriage., a key-operated lever, type.

l Y 12o operated bysaid lever, escapement lmechanism forl the carriage, a universal bar operativelyconnected to said -escapement mechanism-fand normally separated from the keyoperated lever, and a positive stop for arresting4 said. llever at such a point that sufficient movem'entto actuate the escapement mechanism will' not be given said bar. f

6'.- Ina typewriting machine, the combination eta-'carriage rbbonvibratory mecha- 130 the ribbon mechanism may be operated when the levers are depressed, and a device deltachably held to the guide plate and adapted yto make said leverineil'ective to trip the escapement, said device having a body portion provided with a slot and with a stop adapted to be engaged by the key-operated -lever and with a hooked portion adapted to fit over said plate and with lips adapted to engage the lower edge of said plate.

"7 In a typewriting machine, the combination of a carriage, ribbon vibratory mechanism, type, key-operated levers operatively connected to-the type, a guide plate for the levers, means whereby the ribbon mechanism -may be operated whenthc key-levers are depressed, and a device adapted to be detachably held to .the guide plate and having a body portion provided with a slot and With a stop adapted to bev engaged by the keyoperated lever.

8. In a typewriting machine, the combination of a carriage, ribbon vibratory mechanism, type, key-operated levers operatively connected to the type, a guide plate having guide slots for the levers, and a device arranged on the guide plate and having a body portion provided with a slot adapted to reg-l ister with a slot in thegu-ide plate and with a stop adapted to 'be engaged by one of the key-operated levers, said device being provided With means for detachably holding the device to said plate. r, 9. In a typewriting machine, the combination of a carriage, ribbon vibrating mechanism, escapement mechanism, a key-lever, means connecting the key-lever to operate the ribbon vibrating mechanism, a guide plate, and a dev ice detachably held to said guide plate and adapted to form a stop for said key-lever.

10. In a typewriting machine, the combination of a carriage, ribbon vibrating mechanism, escapement mechanism, a key-lever, means connecting the key-lever to operate the ribbon vibrating mechanism, a guide plate, and a stop 'arranged on said guide plate adapted to be engaged by said lever.

11. In a typewriting machine, the combination of acarriage, ribbon vibrating mechanism adapted to move the ribbon to and from the printing point or permit it to remain inactive, akey-operated lever, means whereby the lever may operate the ribbon vibrating and the escapement mechanisms, an accent key-operated lever, a guide plate, and a device held to said guide plate to form a-stop for said accent lever.

12. In a typevvriting machine, the combination of a support, acarriage, escapement mechanism, ribbon vibrating mechanism,

key-levers, type-bars operated by said key- A levers, means whereby the key-lovers may operatethe ribbon vibrating mechanism and trlp the escapen'lent, a silent keyoperatively' connected to a type-bar, a comb plate guiding said key, means for limiting the move ment of said silent key, and a device having a. slotted plate-like body and ends forming clips adapted to engage and be detachably Aheld to the comb plate and forming a positive stop for the silent key.

13. In a typewriting machine, the combinationl of a support, a carriage, escapement mechanism, ribbon vibrating mechanism,

,key-operated levers,'typebars operated lby said levers, means whereby the key-operated levers may operate the ribbon vibrating mechanism and trip the escapement, a silent key operatively connected to a type-bar, a comb plate guiding' said key, and a device having a slotted plate-like body and ends forming clips adapted to engage and be detachably held to the comb plate and forming a positive stop for the 'silent key.

14. Ina typewriting machine, the combi.

nation of a carriage, key-levers, type-bars operated by said'key-levers, a silent key operatively connected to a type-bar, a comb plate guiding said key, and a device detachably held to the comb'plate and forming a positive stop for the silent key. .y

15. In a typewriting machine, the combination of a carriage, a platen' mounted in said carriage, escapement mechanism for said carriage, ribbon vibrating mechanism including an actuating-lever having an active and an inactive portion, and key-op-v erated levers for giving the' lever different throws, the escapement mechanism being tripped only when the lever is given its greatest throw. l

16.` In a typewriting machine, thecombination of a carriage, a platen mounted in said carriage, escapement mechanism for said carriage, ribbon vibrating mechanism including ya vibrator actuating' lever having an active and 'an inactive portion, key-operated levers for imparting movement to said vibrator actuating lever and tripping the escapement, an accent key-operated lever for operating the first-mentioned lever Without tripping the escapement, and type operated by all of said key-operated levers.

17. In atypewriting machine, the combination of a support, a carriage, a platen mounted on said carriage, anv actuator, a rocking frame operatively connected to said actuator, a key-lever adapted to operate said rocking frame, a pivotall`y held lever having an overhanging portion provided with an angular slot therein forming active and inactive parts, and a ribbon holder having a part thereof adapted to enter said slot and be given `movement by the lever when the actuator is moved.

18. In a. typewriting machine, the combination of a support, a carriage, a platen mountedon said carriage, an actuator', a key-operated` lever adapted to operate said actuator, a ApivotallyJneld lever having an' overhanging portion provided with active land inactive parts, and aribbon holder adapted tobe given'movement by the active part of the lever when the actuator is moved.

19. In atypewriting' machine, the combination of a support,v a. carriage, a-plz ten mounted on said carriage, an actuatoii, a

V rocking'frame operatively connected to said actuator'7 a key-lever adapted to opera ce Said rocking frame, a pivotally held lever having an angular slot therein forming an active and inactive portion, and a ribbon holder having a part thereof. adapted to enter said slot and be given movement by. the lever when the actuator is moved. y

This specification signed and witnessed this 11th dayof July A. D. 1914.

f ofrTo PETERMAuN.

Genies of this ptent may be obtained for five cents eaevh, by addressing the Commissioner of latenti,

, Washington, 

